This Brand New Blackberry Q10 Black, Factory Unlocked phone comes in Original box from Blackberry with all Original accessories in the box. This phone comes with 30 days warranty with our company, after that there is no warranty unless you purchase a third party company warranty. It is customers responsibility to find out if this phone will or will not work on 4G LTE service, we will not accept returns if 3G or 4G will not work for customer. Here are the bands for 3G and 4G: HSPA 1, 2, 5/6, 8 (850 / 900 / 1900 / 2100 MHz) LTE international bands 3, 7, 8, 20 (1800 / 2600 / 900 / 800 MHz)